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Full text of "Apple Service Manual: PowerBook 3400c G3"

Service Source 




PowerBook 3400c/ 
PowerBook G3 



PowerBook 3400c/ 180, 3400c/200, and 

PowerBook G3 



■► 




Service Source 



Hot Issues 



PowerBook 3400/G3 



<** 



Hot Issues Overview - 1 

Overview 

This chapter is designed to highlight unique or high- 
priority product issues that you should be aware of before 
servicing the PowerBook 3400 and PowerBook G3. 

This chapter alerts you to important issues and provides 
links to other areas in the manual where more complete 
information can be found. This chapter is not intended to 
replace other parts of this manual; it merely provides a 
pointer to pertinent information in those chapters. 

The date the Hot Issue was published is indicated in 
parentheses after the title. 



<** 



Hot Issues PowerBook 3400: Modem Driver Update - 2 

PowerBook 3400: Modem Driver 
Update 

Issue: Customers may report one of the following problems 
with their PowerBook 3400 modem: 

1 The modem will not reset following a disconnect. I 
sometimes have to wait 1 to 30 minutes before I can 
reconnect to my service provider. Does this happen 
because the modem is too hot? 

2 When uploading a file using z-modem protocol I often get 
multiple errors and my computer freezes or I get a 
system error. 

3 When I am downloading large files (2-2.5 MB) over the 
modem I often get intermittent disconnects. 



^IMI^ 



Hot Issues PowerBook 3400: Modem Driver Update - 3 

Solution: These problems are not heat-related. To address 
these situations, Apple has released a modem driver update. 

Since many users believed these issues were heat-related, 
they have had many dealers replace these modems. This 
driver should resolve the issues and prevent needless 
hardware replacement. 

The Modem Driver update is posted at the Apple Software 
Updates site. Apple Software Updates can be found on the 
Service Source Companion 1 CD, and online as follows: 
America Online, CompuServe, ftp.info.apple.com, and 
ftp.support.apple.com, www.info.apple.com, and 
www.support.apple.com. The path for the update is: 

Apple Software Updates 

US 

Macintosh 

Unsupported 



Hot Issues PowerBook 3400: Modem Driver Update - 4 

PB 3400 Modem Driver Update. img 
PB 3400 Modem Driver Update Info 

The software is in the form of a disk image and requires Disk 
Copy 6.1 (or later) or Disk Image Mounter (or later). 
These can be downloaded from the Utilities folder under 
Macintosh in the path listed above. The Info article provides 
installation instructions. 

Unsupported software is provided for customers to download 
and use, but it is at your own risk. Apple does not provide 
technical support for unsupported software. 

This revision will be supported when it is rolled into the 
next official software update. 



<** 



Hot Issues PowerBook 3400: Display Cable Gasket Installation (8/97 and 

PowerBook 3400: Display Cable 
Gasket Installation (8/97 and 10/97) 

Issue: The display cables on some PowerBook 3400 
computers have been working loose from their logic board 
connections. The customer-reported symptoms related to 
this issue include no display image or backlight while the 
computer is running. 

Solution: The solution in the 8/97 Hot Issue was to install a 
foam gasket to the underside of the brightness and speaker 
grill to keep the cable connector in place. In fact, the foam 
gasket is not available as a service part and cannot be 
ordered separately. 

If customers report symptoms related to a loose PowerBook 
3400 display cable— intermittent or no display image/ 
backlight — service providers should replace the brightness 



Hot Issues PowerBook 3400: Battery Gasket Installation (8/97) - 6 

and speaker grill, part number 922-2488. All service 
grills come with the foam gasket installed. 



PowerBook 3400: Battery Gasket 
Installation (8/97) 

Issue: A small number of PowerBook 3400 computers 
running on battery power have unexpectedly shut down when 
jostled or when pressure was applied to the battery area. 
The problem is due to intermittent battery contact. 

Solution: If a PowerBook 3400 exhibits the above problem, 
Apple recommends adding a foam gasket to the inside of the 
battery bay to improve battery contact. The gasket is 
available free of charge in a user-installable kit. To order 
the kit, customers may call 1-888-273-3594. 
Alternatively, service providers may install the gasket for 



^IMI^ 



Hot Issues PowerBook 3400: Battery Gasket Installation (8/97) - 7 

customers and can order the kit as service part number 
076-0706. The installation is a warranty repair. 

For instructions on installing the Battery Gasket, see 
"Battery Gasket Installation" in the Additional Procedures 
chapter of this manual. 



<** 



Service Source 




Basics 



PowerBook 3400c/PowerBook G3 



<** 



Product Overview - 1 



Product Overview 



PowerBook 3400c 



The PowerBook 3400c 
computer is an all-in-one 
notebook with several 
features that greatly 
increase its performance. 
Its 603e microprocessor 
runs at a clock frequency of 
180, 200 or 240 MHz. In 
addition to the 25 6K L2 
cache, the PowerBook 
3400c comes with 1 6 MB of 
RAM and is upgradeable to 
144 MB. 



Basics 




Basics Product Overview - 2 

The system includes a 1 , 2, or 3 GB hard drive, optional CD- 
ROM drive, and standard 1 .44 MB floppy drive. And, with its 
1 2.1 " display, the screen is larger than previous 
PowerBook displays. 

PowerBook G3 

The PowerBook G3 is based on the PowerBook 3400c, but 
due to its 250-MHz PowerPC G3 processor, L2 backside 
cache, and improved bus speed, the PowerBook G3 is 
approximately twice as fast as the 240-MHz PowerBook 
3400c. The PowerBook G3 also includes more RAM on 
board, a higher powered battery, and a larger hard drive 
than the PowerBook 3400c. In addition, the PowerBook G3 
is shipping with MacOS 8, which is optimized to run with 
the G3 processor. The combination of these features results 
in PowerBook G3 break-through performance. 



Basics System Configurations - 3 

System Configurations 

The PowerBook 3400c and G3 come in these configurations: 

PowerBook 3400c/180 (February '97) 

• Processor: 180-MHz PowerPC 603e 

• RAM: 16 MB 

• Drives: 1 GB hard drive; 1 .44 floppy drive; optional 6x 
CD-ROM drive 

• Display: 12.1 -inch SVGA 

PowerBook 3400c/200 (February '97) 

• Processor: 200-MHz PowerPC 603e 

• RAM: 16 MB 

• Drives: 2 GB hard drive; 1 .44 floppy drive; 6x CD-ROM 
drive 

• Display: 12.1 -inch SVGA 

• Modem: EtherNet/modem card 



Basics System Configurations - 4 

PowerBook 3400c/240 (March '97) 

• Processor: 240-MHz PowerPC 603e 

• RAM: 16 MB 

• Drives: 3 GB hard drive; 1 .44 floppy drive; 1 2x CD- 
ROM drive 

• Display: 12.1 -inch SVGA 

• Modem: EtherNet/modem card 

PowerBook G3 (November '97) 

• Processor: 250-MHz PowerPC G3 

• Cache: L2 backside cache 

• RAM: 32 MB 

• Drives: 5 GB hard drive; 1 .44 floppy drive; 20x CD- 
ROM drive 

• Display: 12.1 -inch SVGA 

• Modem: EtherNet/modem card 



<** 



Basics Repair Strategy - 5 



Repair Strategy 



Service the PowerBook 3400c and PowerBook G3 through 
module exchange and parts replacement. Customers can 
request on-site service from an Apple Authorized Service 
Provider Plus (AASP+) Apple Assurance (US only), or 
request a courier through the Apple Canada Technical 
Answerline (Canada only). They can also choose carry-in 
service from an AASP. 

Ordering 

Apple Service Providers planning to support the computer 
systems covered in this manual may purchase Service 
modules and parts to develop servicing capability. To order 
parts, use the AppleOrder (US only) or ARIS (Canada only) 
system and refer to "Service Price Pages." 



Basics Repair Strategy - 6 

Large businesses, universities, and K-1 2 accounts must 
provide a purchase order on all transactions, including 
orders placed through the AppleOrder (US only) or ARIS 
(Canada only) system. 

USA Ordering 

US Service Providers not enrolled in AppleOrder may fax 
their orders to Service Provider Support (51 2-908- 
81 25) or mail them to 

Apple Computer, Inc. 
Service Provider Support 
MS 212-SPS 
Austin, TX 78714-9125 

For US inquiries, please call Service Provider Support at 
800-91 9-2775 and select option #1 . 



^IMI^ 



Basics Repair Strategy - 7 

Canadian Ordering 

Canadian Service Providers not enrolled in ARIS may fax 
their orders to Service Provider Support in Canada 
(1-800-903-5284). For Canadian inquiries, please call 
Service Provider Support at 905-51 3-5782 and select 
option #3. 



<** 



Basics Warranty/AppleCare/ARIS - 8 

Warranty/AppleCare/ARIS 

US Only 

The PowerBook 3400c and PowerBook G3 are covered under 
the Apple One-Year Limited Warranty. The AppleCare 
Service Plan is also available for these products. Service 
Providers are reimbursed for warranty and AppleCare 
repairs made to these computers. For pricing information, 
refer to "Service Price Pages." 

Canada Only 

The PowerBook 3400c and PowerBook G3 are covered under 
first-year AppleCare. The Extended AppleCare Service Plan 
is also available for these products. Service Providers are 
reimbursed for first-year warranty and Extended 
AppleCare repairs made to these computers. For pricing 
information, refer to "Service Price Pages." 



Basics 



View of Front and Right Side - 9 



Volume Control 




Sleep Indicator 
Microphone 

Stereo Speakers 



Brightness Control 
Floppy Drive 
Expansion Bay Drive Light 

Security Slot 
Battery 



View of Front and 
Right Side 

The front of the computer 
includes the following: 
stereo speakers, volume 
control, brightness control, 
sleep indicator, and 
microphone. 

The right side includes the 
battery, security slot, 
expansion bay drive light, 
and floppy drive. 



<** 



Basics 



View of Rear and Left Side - 1 



Infrared 
Window 

Expansion 
Port 
Reset Button 



Printer/External 
Modem Port 

SCSI Port (HDI-30)' 




Stereo Speaker 

Sound 
I — Output 
Port 

Sound 

Input 

Port 

Two PCMCIA 
card slots 

PC Card 
Eject Buttons 



ADB Port 



Video Port 



Power Elevation 
Adapter Feet 
Port 



View of Rear and 
Left Side 

The rear panel includes the 
infrared window, reset 
button, and these ports: 
expansion, printer/external 
modem, SCSI, video, and 
power adapter. 

The left side includes a 
stereo speaker, two PC card 
(PCMCIA) slots, PC card 
eject buttons, and these 
ports: sound input, sound 
output, and ADB. 



<** 



Basics 



Logic Board - 1 1 



Fan — 
Connector 

Power 
Supply 
Connector^ 

Trackpad 
Connector 

LED 
Connector 

Ethernet/ 

Modem Board 

Connector 

CD-ROM or 

Floppy Drive 

Connector 



Microprocessor 



Hard Drive Connector 




Onboard 
RAM 

RAM Card 
Connector 



PCMCIA 
Connector 

Brightness & 

Speaker 

Connector 



Infrared 
Connector 



Keyboard 
Connectors 



Display 
Connector 



Logic Board 

The logic board includes 
onboard RAM, the PCMCIA 
mechanism, and numerous 
connectors. 



<** 



Basics 



Signals on the Video Connector - 1 2 



Signals on the Video Connector 



Pin 


Signal Name 


Description 


1 


RED 


Red video signal 


2 


GREEN 


Green video signal 


3 


BLUE 


Blue video signal 


4 


MONID(O) 


Monitor ID signal 


5 


GND 


DDC return 


6, 7, 8 


AGND_VID 


Analog video ground 


9 


+5VJO 5 V 


Power for I/O device 


10 


GND HSYNC & VSYNC 


Ground 


1 1 


VGAJD 


VGA ID signal 


12 


MONID(2) 


Monitor ID signal 2 


13 


HSYNC 


Horizontal 
synchronization signal 


14 


VSYNC 


Vertical synchronization 
signal 


15 


MONID(I) 


Monitor ID signal 1 



<<■► 



Basics Battery Information - 1 3 



Battery Information 



Warning: For the main battery, use only the lithium-ion 
(Lilon)battery supplied with the computer. Batteries 
designed for other portable computers may look similar, but 
they may not work with your computer and may damage it. 

The Lilon and nickel-metal-hydride (NiMH) batteries look 
similar. To distinguish them, 

• Read the label on the battery, which will identify the 
battery as either "Lilon" or "NiMH." 

• Look for battery indicator lights; if the battery has 
them, it's a Lilon battery. 



^IMI^ 



Basics Battery Information - 1 4 

Main Battery 

For their main batteries, 
the PowerBook 3400c and 
G3 use lithium ion (Lilon) 
batteries. Each battery 
provides power for up to 
four hours of work time. 



Note : Although these 
batteries fit into a Power- 
Book 190/5300, it will not 
recognize or charge them. 

Note: To use the PowerBook 
G3 battery in a PowerBook 
3400c, you may need to 
install a software update. 




^IMI^ 



Basics Battery Information - 1 5 

Optional Battery 

The PowerBook 3400c and G3 computers can also use a 
nickel-metal-hydride (NiMH) battery. This battery 
provides somewhat less work time; the precise amount of 
work time depends on the model you have and the battery 
conservation features you use. 



Battery Handling Guidelines 

The following are guidelines for properly handling the 
PowerBook 3400c and G3 batteries: 

Warning: Lilon batteries contain hazardous chemicals and 
should not be thrown out with household or office trash. Take 
dead batteries to an Apple authorized service provider for 
recycling or proper disposal. Review battery handling and 
disposal instructions in Safety Information in Bulletins/ 



^IMI^ 



Basics Battery Information - 1 6 

Safety. 

• Handle the battery carefully. Do not drop, puncture, 
disassemble, mutilate, or incinerate it. 

• Do not leave a battery in the computer for longer than a 
week without plugging in the power adapter. 

• Always put the battery cap on the battery when the 
battery is out of the PowerBook. The battery contacts 
should not be exposed when the battery is out of the 
computer. 

• Do not leave the battery in hot locations (such as the 
trunk of a car). 

• Do not leave a battery in storage for longer than six 
months without recharging it. 

• Never get batteries wet. 

• Do not short-circuit the battery terminals. Doing so may 
cause an explosion or a fire. 

• Recharge batteries only as described in the user's manual 
and only in ventilated areas. 



Basics 



PC Card Handling - 17 




PC Card Handling 

Two PC Card slots (also 
known as PCMCIA slots) are 
featured in the PowerBook 
3400c and G3 computers. 

The two slots accept a 
variety of third-party PC 
Cards with 68-pin 
connectors. 

There are three types of PC 
Cards: Type I (3.3 mm), 
Type II (5 mm), and Type III 
(1 0.5 mm). Type I and Type 
II cards fit in either the 
upper or lower slot of the PC 



^IMI^ 



Basics PC Card Handling - 1 8 

Card unit. Type III cards can only be placed in the lower slot. 
When a Type III card is in the lower slot, the upper slot 
cannot be used. 

The following are guidelines for properly handling PC Cards: 

• Use only cards that are compatible with the PC Card unit. 
Refer to the compatibility information that came with the 
card. If you cannot find the compatibility information, 
call the card vendor. 

• Do not insert anything other than a PC Card into the card 
slots. 

• The computer must be on or off in order to eject a PC 
Card. When the computer is in sleep mode, a PC Card 
cannot be ejected. 

• Before you eject a card, make sure nothing is blocking 
the card's slot. 



^IMI^ 



Basics PC Card Handling - 1 9 

• If you want to use the card again immediately, pull it out 
about an inch more and then push it back in. If you don't 
follow this procedure and try to push the card back in to 
use it again, the card will not engage properly. 

• Do not pull on a PC Card before it has been ejected out of 
the slot. Forcing a PC Card out of the slot may damage the 
computer or the card. 



<** 



Service Source 




Specifications 



PowerBook 3400c /PowerBook G3 



<** 



Specifications Introduction - 1 

Introduction 

You can also find specifications information for this product in the 
Spec Database, which you can access in one of three ways: 

— Launch it directly by double-clicking the Apple Spec Database 
runtime alias at the top level of the Main Service Source CD. 

— Select "Apple Spec Database" from the Service Source drop- 
down main menu. 

— Click the Acrobat toolbar icon for the database, which is near 
the right end of the toolbar with the letters "SP." 



<** 



I -ffi\ Specifications 



Processor - 2 



CPU 



Processor 



PowerBook 3400c 



PowerBook G3 



PowerPC 603e microprocessor running at 1 80, 200, or 240 

MHz 
PowerPC G3 microprocessor running at 250 MHz 



Cache 



PowerBook 3400c 
PowerBook G3 



256K, second-level (L2) cache 
51 2K, L2 backside cache 



<** 



I -ffi\ Specifications 



Memory - 3 



Memory 



RAM 



PowerBook 3400c 
PowerBook G3 



1 6 MB EDO RAM, expandable to 1 44 MB 
32 MB EDO RAM, expandable to 1 60 MB 



ROM 



4 MB ROM 



VRAM 



2 MB VRAM 



<** 



F^rj Specifications 



Disk Storage - 4 



Disk Storage 



Floppy Drive 



Removable 1 .44 MB floppy drive (in the expansion bay). Reads 
and writes Macintosh 1 .4 MB and 800K floppy disks, as well as 
Windows, DOS, and OS/2 720K and 1 .44 MB floppy disks. 



Hard Drives 



1.3, 2.0, 3, or 5 GB 2.5" hard drive 



CD-ROM Drives 

PowerBook 3400c 



PowerBook G3 



Optional, removable 6x-speed CD-ROM drive in the expansion 
bay, if included (PowerBook 3400c/1 80; PowerBook 3400c/ 
200) 

Removable 1 2x-speed CD-ROM drive in the expansion bay 
(PowerBook 3400c/240) 

Removable 20x-speed CD-ROM drive in the expansion bay 



I -ffi\ Specifications 



I/O Interfaces - 5 



I/O Interfaces 



SCSI 



SCSI port (HDI-30 connector) for hard drives, scanners, 
printers, and other devices; also supports PowerBook SCSI 
disk mode 



PC Cards 



Two PC Card (PCMCIA card) slots support either two Type I or 

Type II cards or one Type III card 
Lower slot also supports "zoom video," a method of displaying 

video signals from a PC card 



ADB 



Apple Desktop Bus (ADB) port for keyboard, mouse, or other 

input devices using a low-speed, synchronous serial bus 
200 mA maximum current draw for all ADB devices 
Supports up to three ADB devices in a daisy chain 



^IMI^ 



\~&\ Specifications 
Serial 



I/O Interfaces - 6 



Serial port for printer, modem (including Geo Port support), 
LocalTalk network, or other serial devices (RS-422) 



Sound 



Sound output port for external audio amplifier/powered speakers, 
stereo mini-jack, 3-connector, standard 3.5-mm stereo 
miniplug; sound input port for stereo sound input (line level), 
stereo mini-jack, 3-connector, standard 3.5-mm stereo 
miniplug 

1 6-bit stereo sound in and out supports 44.1 kHz ("CD quality" 
sound), 22 kHz, and 1 1 kHz sample rates 

Four built-in speakers; two housed in the display and two at the 
top of the keyboard 



Infrared 



Built-in infrared that supports two types of transmission— 230 
kilobit-per-second IRTalk and 1 megabit-per-second IrDA 



^IMI^ 



\~fifl Specifications 



I/O Interfaces - 7 



Power Adapter 
Video 



Power adapter port 

Video port for up to 1 6-bit/thousands-of-color video output to 
most Apple monitors (with the supplied adapter), VGA 
monitors (640 x 480), and SVGA monitors (800 x 600, 1 024 
x 768) 



Security 



Connector on side panel allows users to attach security device; 
also secures battery and any module in expansion bay 



<** 



F^rj Specifications 



Expansion Interfaces - 8 



Expansion Interfaces 



Expansion Bay 



Expansion bay accepts a removable expansion bay module (floppy 
drive, CD-ROM drive) or other modules 



<** 



\~ffll Specifications 



I/O Devices - 9 



I/O Devices 



Keyboard 



Built-in keyboard with 1 2 function keys 
76 keys domestic, 77 keys ISO 
3.0-mm travel keyboard 
1 9-mm vertical and horizontal pitch 



Trackpad 
Microphone 



Integrated, solid-state trackpad 



Internal, electret, omnidirectional microphone 



<** 



\~&\ Specifications Video - 1 

Video 



Display 12.1" diagonal, 800 x 600 active matrix color SVGA; thousands of 

colors 



<** 



\~fi?[ Specifications 



Electrical - 1 1 



Electrical 



Main Battery 



Rechargeable lithium ion (Lilon) battery 
2-4 hours of use before recharging 



Power Adapter 
Backup Battery 



100-240 VAC line voltage, 50-60 Hz 

60 milliampere (mAh) rechargeable NiMH battery for calendar/ 
clock maintenance. Also backs up contents of RAM for a few 
minutes while battery is changed (when PowerBook is in sleep 
mode) 



<** 



I -ffi\ Specifications 



Physical - 1 2 



Physical 



Dimensions 



Height: 2.4 in. (65.6 mm) 
Width: 1 1.5 in. (293 mm) 
Depth: 9.5 in (239.5 mm) 



Weight 



7.2 lb. (3.2 kg) with floppy drive installed 
7.4 lb. (3.3 kg) with CD-ROM drive installed 



<** 



\~fi?[ Specifications 



Environmental - 1 3 



Environmental 



Operating 
Temperature 



50° to 95° F (10° to 35° C) 



Storage 
Temperature 



■13° to 140° F (-25° to 60° C) 



Relative Humidity 20% to 80% noncondensing 



Operating Altitude 10,000 ft. (3,048 m) maximum 



Shipping/Non- 
Operating Altitude 



15,000 ft. (4,572 m) maximum 



<** 



Service Source 




Troubleshooting 



PowerBook 3400c/PowerBook G3 



«■► 



Troubleshooting General - 1 

General 

In each product manual on Service Source, you will find 
Flowcharts and/or Symptom Charts designed to help you 
diagnose and repair Apple computers. 

If you have narrowed the problem down to a particular 
symptom, start with the Symptom Charts. Because cures are 
listed in the order of most likely solution, try the first cure 
first. Verify whether or not the product continues to exhibit 
the symptom. If the symptom persists, try the next cure. 

If you are not sure what the problem is, or if the Symptom 
Charts do not resolve the problem, refer to the Flowcharts. 

If you require additional assistance, contact Apple Technical 
Support. Refer to the About topic under the Do menu for the 
Apple Technical Support phone number. 

<<■► 



\~fifl Troubleshooting 



Symptom Charts/Startup - 2 



RAM failure occurs 
(eight-tone error 
chord sequence sounds 
after startup chord) 



Symptom Charts 

Startup 



1 Remove RAM card (if present) and restart computer. If 
startup sequence is normal, replace RAM card and retest. 

2 Reseat RAM card and check connection. 

3 Replace RAM card. 

4 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Startup - 3 



Hardware failure 
occurs (four-tone 
error chord sequence 
sounds after startup 
chord) 



1 Reset PRAM. 

2 Remove floppy drive from media bay and restart computer. If 
startup sequence is normal, insert floppy drive and retest. 

3 Replace floppy mechanism. 

4 Disconnect hard drive cable and restart computer. If startup 
sequence is normal, reconnect cable and retest. 

5 Replace hard drive. 

6 Replace logic board. 



Startup failure 
occurs when using 
minimum System 
Folder and System 
7.6. 



Upgrade to System Enabler 1 .2.1 or later. Refer to Apple Software 
Updates on Service Source Companion CD. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/Power - 4 



Power 

Note: You will hear only the click of the power-on button when 
you attempt to start up a computer that lacks sufficient power to 
start. 



Computer won't 
power up 



1 



2 
3 
4 
5 
6 



If sleep LED is continually on, backup battery power has been 

interrupted. Restart computer by holding down reset actuator 

10-20 seconds. If computer doesn't restart, repeat 3-4 

times. 

Try known-good power adapter. 

Try known-good, charged battery. 

Connect power adapter and restart computer in 3-4 minutes. 

Replace power supply board. 

Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Power - 5 



Screen is blank; 
computer doesn't 
respond 



If sleep LED is continually on, backup battery power has been 

interrupted. Restart computer by holding down reset actuator 

10-20 seconds. If computer doesn't restart, repeat 3-4 

times. 

Restart computer. 

Disconnect power adapter, remove battery, and restart 

computer in 3-4 minutes. 

Check power adapter cable. 

Try known-good, charged battery. 

Try known-good power adapter. 

Reset power manager. 

Check all logic board cables and connections. 

Replace keyboard. 

I Replace power supply board. 

I I Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Power - 6 



After you remove 
battery, some Control 
Panel settings are 
different 



1 Check keyboard and backup battery cables and connections. 

2 Replace backup battery. 

3 Replace logic board. 



Computer runs when 
plugged into wall 
outlet but not on 
battery power; 
battery voltage is 
within tolerance 



1 Reset power manager. 

2 Reseat battery to make sure battery is mating with contacts 
on logic board. 

3 Try known-good battery. 

4 Try known-good power adapter. 

5 Replace power supply board. 

6 Replace logic board. 



^IMI^ 



\~ffll Troubleshooting 



Symptom Charts/Power - 7 



Power adapter is 1 

plugged in, but 2 

Control Strip doesn't 3 
indicate adapter is 
connected 



Verify that power adapter is connected correctly. 
Try known-good power adapter. 
Replace logic board. 



When Shutdown is 
selected with power 
adapter plugged in, 
computer shuts down 
but immediately 
powers back up 



1 Reset PRAM. 

2 Disconnect power adapter, remove battery, disconnect backup 
battery, and wait 1 5 minutes before retesting. 



^IMI^ 



Troubleshooting 



Symptom Charts/Power - 8 



Low-power warning 
appears 



1 Attach power adapter and recharge battery. 

2 Disconnect peripherals. If warning disappears when 
peripherals are disconnected, verify that peripherals are 
low-power. 

3 Reduce use of CD-ROM, floppy, or hard drive; sound; 
backlight; or other power-consuming devices. Or, reconnect 
power adapter. 

4 Try known-good, charged battery. 

5 Try known-good power adapter. 

6 Inspect power adapter port: Verify that connector is not 
loose; if it is, replace main logic board. 

7 Replace power supply board. 

8 Replace logic board. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/ Video - 9 



Video 

Note: A certain number of defects are inherent in display 
technology and vary by many factors, including type of technology. 
If you suspect that your display contains an abnormal number of 
defects, call Apple Technical Support. 



Partial or full row of 
pixels is always on or 
never comes on in an 
active matrix display 



1 Check display and backlight cables and connections. 

2 If display cable connection to logic board is loose, replace 
brightness and speaker grill. 

3 Replace display. 

4 Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Video - 1 



Display is very light 
or totally white 



1 
2 



4 
5 
6 



Adjust screen contrast and brightness settings. 

Verify display cable, inverter board, and logic board 

connections. 

If display cable connection to logic board is loose, replace 

brightness and speaker grill. 

Replace inverter board. 

Replace display. 

Replace logic board. 



Display stopped 
working or dimmed 
but is fine now 



1 Replace display. 



^IMI^ 



Troubleshooting 



Symptom Charts/Video - 1 1 



Backlight doesn't 
operate 



1 
2 
3 



5 
6 
7 
8 



Adjust screen brightness setting. 

Verify that backlight cable connection is secure. 

Check display cable, inverter board, and logic board 

connections. 

If display cable connection to logic board is loose, replace 

brightness and speaker grill. 

Verify that cables are not pinched or severed. 

Replace inverter board. 

Replace display. 

Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Video - 1 2 



No display, but 
computer appears to 
operate correctly 



Note: If sleep light is blinking and computer is not in sleep 
mode, reset power manager. 



1 

2 
3 



5 
6 
7 
8 



Insert disk into floppy drive and press Command-e (eject 

disk) to verify that computer is working. 

Adjust screen brightness setting. 

Verify display cable, inverter board, trackpad, keyboard, and 

logic board connections. 

If display cable connection to logic board is loose, replace 

brightness and speaker grill. 

Connect power adapter. 

Replace inverter board. 

Replace display. 

Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Video - 1 3 



Thin white line is 
always on at middle of 
screen 



1 Change the desktop pattern; if the line remains, replace display. 



An external monitor 
connected to the 
PowerBook shows no 
video 



1 Verify cable and cable connections between monitor and video 
board. 



An external monitor 
connected to the 
PowerBook shows 
either horizontal or 
vertical rolling, or 
horizontal or vertical 
distortion 



1 Verify monitor using another computer. 

2 Replace logic board. 



«■► 



Troubleshooting Symptom Charts/ Sound - 1 4 

Sound 

No sound from 1 Verify that volume setting in Control Panel is above 0. 

speaker(s) 2 Verify that no external speaker is plugged in. 

3 Check display cable connections. 

4 Check inverter board connections. 

5 Replace display cable. 

6 Replace inverter board. 

7 Replace speaker(s). 

8 Replace logic board. 



«■► 



Troubleshooting 



Symptom Charts/Floppy Drive - 1 5 



Floppy Drive 

Note: The floppy drive cable referred to in this section is the 
cable inside of the floppy drive case. 



Audio and video 


1 


Try known-good floppy disk. 


present, but floppy 


2 


Check floppy drive cable connection 


drive in media bay 


3 


Replace floppy drive cable. 


does not operate 


4 


Replace floppy drive. 




5 


Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Floppy Drive - 1 6 



Disk ejects while 
booting; display 
shows Mac icon with 
blinking X 



1 Try known-good system disk. 

2 Verify that floppy disk is not locked. 

3 Verify that trackpad and trackpad button are working. 

4 Verify that keyboard is working. 

5 Check floppy drive cable connection. 

6 Replace floppy drive cable. 

7 Replace floppy drive. 

8 Replace logic board. 



^IMI^ 



m 



Troubleshooting Symptom Charts/Floppy Drive - 1 7 



Disk does not eject 1 Switch off system and hold trackpad button down while you 

switch system on. 

2 Eject disk manually by carefully inserting opened paper clip 
into hole near floppy drive slot. 

3 Check floppy drive cable connection. 

4 Replace floppy drive cable. 

5 Replace floppy drive. 

6 Replace logic board. 

Disk initialization 1 Try known-good floppy disk. 

fails 2 Check floppy drive cable connection. 

3 Replace floppy drive cable. 

4 Replace floppy drive. 

5 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Floppy Drive - 1 8 



Read/write/copy 
error 



1 Try known-good floppy disk. 

2 Check floppy drive cable connection. 

3 Try to format a floppy disk. 

4 Replace floppy drive cable. 

5 Replace floppy drive. 

6 Replace logic board. 



«■► 



Troubleshooting 



Symptom Charts/Hard Drive - 1 9 



Hard Drive 



Internal hard drive 
does not spin up 



1 Make sure power adapter is connected. 

2 Disconnect external SCSI devices. 

3 Check hard drive cable connection. 

4 Replace hard drive cable. 

5 Use Hard Drive Format to reinitialize drive. 

6 Replace hard drive. 

7 Replace logic board. 



«■► 



Troubleshooting 



Symptom Charts/CD-ROM Drive - 20 



CD-ROM Drive 



CD-ROM drive does 
not accept disc 



1 Replace disc (if dirty or damaged). 

2 Reinsert CD-ROM drive. 

3 Replace CD-ROM drive. 



Volume control does 
not operate correctly 



1 Check Control Panel Sound setting. 

2 Reinsert CD-ROM drive. 



Macintosh cannot 
mount CD-ROM drive 



1 Reinsert CD-ROM drive. 

2 Replace CD-ROM drive. 



^IMI^ 



Troubleshooting 



Symptom Charts/CD-ROM Drive - 21 



Audio and video 
present, but CD-ROM 
drive in media bay 
does not operate 



1 Try known-good CD-ROM disc. 

2 Check CD-ROM drive cable connections (inside CD-ROM 
case). 

3 Replace CD-ROM drive cable. 

4 Replace CD-ROM drive. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/PC Card Module (PCMCIA) - 22 



PC Card Module (PCMCIA) 



PC Card won't eject 



1 Make sure computer is not in sleep mode. 

2 Make sure PC Card slot is not blocked. 

3 Insert straightened paper clip into hole next to slot. 

4 Use needlenose pliers to remove PC Card. 

5 Verify that PC Card is not warped or damaged in any way; if 
so, replace with new card. 



PC Card is inserted 
but doesn't appear on 
desktop 



Note: Modem and communication cards may not appear on 
desktop. 

1 Try PC Card in the other slot. 

2 Replace PC Card. 

3 Replace logic board. 



^IMI^ 



Troubleshooting Symptom Charts/PC Card Module (PCMCIA) - 23 



Note: If "defective card" or "unrecognizable card" appears in 
place of card name in PCMCIA Eject control panel, card is damaged 
or computer does not have software required to support it. Eject 
card. 



System with PC card Replace logic board, 

performs poorly or 
hangs during floppy 
drive operations 



«■► 



Troubleshooting 



Symptom Charts/Infrared Communication - 24 



Infrared Communication 



Infrared 

communication is not 
working 



1 Clean infrared window with soft lint-free cloth. 

2 Verify infrared cable connection. 

3 Verify infrared signal is being received by host computer. 

4 Replace infrared cable. 

5 Replace infrared board. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/Peripherals - 25 



Peripherals 



After you connect 
external SCSI device, 
computer does not 
boot 



1 Verify that device and SCSI chain are terminated correctly. 

2 Switch on external SCSI device before starting computer. 

3 Check cable connections. 

4 Try known-good SCSI cable. 

5 Verify that SCSI ID select switch setting on external device is 
unique. 

6 Try known-good external SCSI device. 

7 Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Peripherals - 26 



Cursor does not move 
when you are using 
trackpad 



1 Shut down computer, unplug adapter, and remove battery. Let 
computer sit for 1 minute before restarting. 

2 Reset power manager. 

3 Check trackpad connections. 

4 Check keyboard and logic board connections. 

5 Connect low-power mouse and try to move cursor. If cursor 
moves, try using trackpad and keyboard. If trackpad does not 
move cursor, replace trackpad. If keyboard does not respond, 
replace keyboard. 

6 Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Peripherals - 27 



Cursor intermittently 
does not move or 
moves erratically 



Note: User must touch trackpad with the surface of only one 
finger at a time and point directly down on the trackpad surface. 

1 Clean trackpad surface (with computer off, using a non- 
static inducing material). 

2 Check trackpad connections. 

3 Replace trackpad. 

4 Replace keyboard. 

5 Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Peripherals - 28 



Cursor moves, but 
clicking trackpad 
button has no effect 



1 Reset power manager. 

2 Check trackpad connections. 

3 Check keyboard and logic board connections. 

4 Replace trackpad cable. 

5 Replace trackpad. 

6 Replace keyboard. 

7 Replace logic board. 



Cursor does not move 1 
when you are using 2 

mouse 



Check mouse connection to ADB port. 

Try a known-good low-power mouse. If the known-good 

mouse works, clean mouse ball and inside of original mouse 

and retest. If the original mouse still doesn't work, replace 

it. 

Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Peripherals - 29 



No response to any 
key on keyboard 



1 Verify that computer is on. 

2 Reset the power manager. 

3 Check keyboard connection by disconnecting and reconnecting 
keyboard cables. 

4 Replace keyboard. 

5 Replace logic board. 



Serial device such as 
digital camera not 
recognized by 
computer 



Update Serial DMA extension to version 2.1 or higher. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Peripherals - 30 



Known-good direct- 
connect printer does 
not print 



1 Reset PRAM. 

2 Verify that Chooser and Control Panel settings are correct. 

3 Check cables. 

4 Replace printer cable. 

5 Try known-good printer. 

6 Replace logic board. 



Known-good network 
printer does not print 



1 Reset PRAM. 

2 Verify that Chooser and Control Panel settings are correct. 

3 Check cables. 

4 Attach computer directly to printer, and retest. 

5 Replace logic board. 



^IMI^ 



m 



Troubleshooting 



Symptom Charts/Peripherals - 31 



I/O devices are 
unrecognized, or 
garbage is 
transmitted or 
received 



1 Reset PRAM. 

2 Check cables. 

3 Verify that SCSI device is correctly terminated. 

4 Verify that SCSI select switch setting on external device is 
unique. 

5 Test device with known-good computer. 

6 Replace logic board. 



In disk mode, 
computer does not 
display SCSI icon 
until host is booted, 
or computer crashes 
when host is shut 
down 



1 Verify that computer has a unique SCSI ID. 

2 Check that SCSI disk mode cable is good and that connection is 
tight. 

3 Replace logic board. 



«■► 



Troubleshooting 



Symptom Charts/Miscellaneous - 32 



Miscellaneous 



Sleep light won't 
come on 



1 Verify that computer is in sleep mode and not powered off. 

2 Reset power manager. 

3 Replace inverter board. 



Screen goes blank; Computer is going into system sleep to conserve battery power, 

computer shuts down Adjust sleep delays in Control Panel or connect power adapter, 
every few minutes 

Application gradually Computer is switching to system rest. If system rest interfering 

runs slower with operation of application, connect power adapter. 



Hard drive slow; 
screen goes blank 



Adjust sleep delays in Control Panel or connect power adapter. 



Ethernet connection 
drops off line by itself 



Install Ethernet driver 2.0.4 or later. 



«■► 



\~fifl Troubleshooting 



Troubleshooting Flowchart — Startup Problems - 33 



Troubleshooting Flowchart — Startup Problems 




1 . Check the keyboard and 
display cables. 

2. Replace the keyboard. 

3. Replace the logic board. 




1. Check the volume. 

2. Check the keyboard and 
display cables. 

3. Replace the speaker. 

4. Replace the logic board. 



See "Startup" in the 
Symptom Charts. 



1 . Check display/inverter cable 
connections. 

2. Replace the display and 
backlight cables. 

3. Replace the inverter. 

4. Replace the display. 

5. Replace the logic board. 



^IMI^ 



\~fifl Troubleshooting 



Symptom Charts/Miscellaneous - 34 



Troubleshooting Flowchart — Startup Problems 




(Goto 
Start 





1 . Boot with extensions off. 


Nn 


2. Boot with Disk Tools 




Update Driver. 




3. Replace the hard drive. 




4. Replace the logic board. 




Insert a known-good disk 

into the floppy disk drive 

and try to initialize it. 




(end) 



1. Reset PRAM. 

2. Boot from Disk Tools. 

3. If hard drive appears, reinstall system software. 

4. If hard drive doesn't appear.see if Hard Drive 
Format can reformat it. 

5. Replace the hard drive cable. 

6. Replace the hard drive. 

7. Replace the logic board. 



1. Reset PRAM. 

2. Check the trackpad and 
keyboard cables. 

3. Replace the trackpad and 
keyboard cables. 

4. Replace the trackpad. 

5. Replace the keyboard. 

6. Replace the logic board. 



) 



1 . Replace the floppy drive cable. 

2. Replace the floppy drive. 



<*>> 



Service Source 




Take Apart 



PowerBook 3400c /PowerBook G3 



<** 



Take Apart Tools - 1 

Tools 

Use the following tools for taking apart these computers: 

• Small, flat-blade screwdriver 

• #8 Torx driver (for removing most screws) 

• #6 Torx driver (for removing the floppy drive screws) 

• Swizzle stick (for removing name plates and kapton tape) 

• Dental pick (for opening flex connectors) 



<** 



Take Apart Screws - 2 

Screws 

There are 38 screws installed in these PowerBooks (not 
including the CD-ROM drive) in 1 2 different sizes. 

You will notice that each part other than the floppy drive 
case kit uses only one type of screw, which makes 
reassembly easier than in other PowerBooks. For example, 
the display frame uses 6 identical screws and the trackpad 
button uses 2 identical screws. 

For the location of each screw in the computers, refer to the 
Exploded View chapter. 



<** 



Take Apart Bottom Case Assembly - 3 

Bottom Case Assembly 

Procedures for removing parts from the bottom case 
assembly are detailed on the following pages. 



^IMI^ 



p£pj Take Apart 



Battery - 4 



Battery 




Before you begin, unplug the 
power adapter 

Caution: You must remove 
the battery before 
performing any take-apart 
procedure. 



Battery 



^IMI^ 



p£pj Take Apart 



Battery - 5 




1 Push the button and slide 
the battery out of the 
media bay. 

Replacement Caution: 

You must install the battery 
before connecting the power 
adapter. 



Button 



<<■► 



\~fl?l Take Apart 



Floppy Drive Assembly - 6 




Floppy Drive 
Assembly 

No preliminary steps are 
required 

Note : Media bay devices 
require approximately 7 lb. 
pull strength. 

Caution: To remove the 
assembly without damaging 
it, turn the unit upside 
down. 



Floppy 

Drive 

Assembly 



^IMI^ 



Take Apart 



Floppy Drive Assembly - 7 



Floppy 

Drive 

Assembly 




1 Slide the release button 
forward. 

Caution : Grasp the ridged 
area of the plastics— not the 
metal cover. This prevents 
bending the metal top case 
and possibly damaging the 
drive. 

2 Grasp the floppy drive 
assembly by its ridged 
area and pull it out of the 
media bay. 



Release Button 



^IMI^ 



Take Apart Floppy Drive Assembly - 8 

Replacement Caution: Media bay tolerances are tight. 
Align media bay devices carefully before inserting them into 
the bay. 



<** 



p£pj Take Apart 



CD-ROM Drive Assembly - 9 




CD-ROM 

Drive 

Assembly 



CD-ROM Drive 
Assembly 

No preliminary steps are 
required. 

Note : Media bay devices 
require approximately 7 lb. 
pull strength. 



^IMI^ 



p£pj Take Apart 



CD-ROM Drive Assembly - 1 



CD-ROM 

Drive 

Assembly 




Release Button 



Caution: To remove the 
assembly without damaging 
it, turn the unit upside 
down, as shown. 

1 Slide the release button 
forward. 

Caution : Grasp the ridged 
area of the plastics— not the 
metal cover. This prevents 
bending the metal top case 
and possibly damaging the 
drive. 

2 Grasp the CD-ROM drive 
assembly by its ridged 
area and pull it out of the 
media bay. 



^IMI^ 



Take Apart CD-ROM Drive Assembly - 1 1 

Replacement Caution: Media bay tolerances are tight. 
Align media bay devices carefully before inserting them into 
the bay. 



<** 



\~ffi Take Apart 



Keyboard - 1 2 



Keyboard 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 



^IMI^ 



\~ffi Take Apart 



Keyboard - 1 3 



crev 




1 Close the computer and 
turn it upside down. 

2 Remove the 3 
interchangeable screws 
from the bottom case. 



^IMI^ 



\~ffi Take Apart 



Keyboard - 1 4 



3 Open the computer. 




Caution: If you pull the 
keyboard too far, you will 
rip the keyboard cables out 
of their connectors. Pull the 
keyboard just enough so its 
4 interior tabs clear the 
brightness & speaker grill. 

4 Inserting a flat-blade 
screwdriver under the 
front of the keyboard, 
lift the keyboard slightly 
up and toward you until 
you feel a slight 
resistance. 



^IMI^ 



\~ffi Take Apart 



Keyboard - 1 5 




Keyboard 
Turned Over 



5 Gently turn the keyboard 
onto the palm rest. 

Caution: To avoid damaging 
the backup battery wires, 
gently pull them out of their 
2 catches on the PCMCIA 
insulator. Then move them 
to the side so they clear the 
right-hand keyboard 
connector. 

6 Using a dental pick, 
detach the keyboard 
cables from their 
connectors. 



^IMI^ 



\~ffi Take Apart 



Keyboard - 1 6 



// :' •' 



f - 




7 If a foam gasket is not 
already installed on the 
bottom of the keyboard, 
install a gasket (part 
number 922-3103) as 
illustrated. 

Replacement Note : As you 

replace each keyboard 
screw, apply pressure to the 
area of the keyboard 
immediately behind each 
screw hole. This allows the 
screws to install more 
easily. 



<<■► 



p£pj Take Apart 



RAM Card - 1 7 




RAM Card 

Before you begin, remove 
the following: 

• Battery 

• Floppy Drive 

• Keyboard 



^IMI^ 



p£pj Take Apart 



RAM Card - 1 8 



RAM Card 




Grasp the RAM card by the 
corners closest to you— 
supporting the bottom left 
corner over the connector — 
and lift straight up. 



<<■► 



p£pj Take Apart 



Brightness & Speaker Grill - 1 9 




Brightness 
& Speaker 
Grill 







Brightness & 
Speaker Grill 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

Note : If you are not 
performing an additional 
take-apart, it is not 
necessary to detach the 
cables of the keyboard. 



^IMI^ 



Take Apart 



Brightness & Speaker Grill - 20 



Brightness 
& Speaker — | 
Connector 




1 Using a dental pick, 
detach the brightness & 
speaker cable from its 
connector. 

2 Remove the screw from 
the brightness & speaker 
grill. 

3 Lift off the brightness & 
speaker grill. 



^IMI^ 



Take Apart 



Brightness & Speaker Grill - 21 



Backup Battery 
Connector 




4 Using your fingers, 
disconnect the backup 
battery connector. 

Note: The backup battery is 
adhered to the grill with 
reusable adhesive. 

5 Gently pull the backup 
battery off the grill. 

Replacement Caution 

Install the backup battery in 
exactly the same location or 
you will not be able to align 
the grill. 



<<■► 



p£pj Take Apart 



Left & Right Clutch Covers - 22 




Right 

Clutch 

Cover 



Left & Right 
Clutch Covers 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 



^IMI^ 



Take Apart 



Left & Right Clutch Covers - 23 



Left 

Clutch 

Cover 




Right 

Clutch 

Cover 



1 Position the display 
assembly at 1 70° from 
the body of the computer. 

2 Grasp the area of the 
clutch cover under the 
display. Using a 
fingernail, pull up from 
the seam in back and 
gently rock the cover 
until it releases. 

3 Pull the cover straight 
up, watching to clear the 
bottom of the display 
assembly. 



^IMI^ 



Take Apart Left & Right Clutch Covers - 24 

Replacement Note : Install the palm rest before installing 
the right & left clutch covers. (The tabs on the palm rest fit 
under the clutch cover tabs.) 



<** 



p£pj Take Apart 



Palm Rest - 25 



Palm Rest 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

Caution : Be careful not to 
pull the trackpad cable out 
of the connector as you turn 
over the palm rest. 



^IMI^ 



p£pj Take Apart 



Palm Rest - 26 




H "Mi 



Grasp the right corner of 
the palm rest and pull it 
up. 

Grasp the top ridge of the 
palm rest and pull it up. 

Turn the palm rest over 
and set it in the area the 
keyboard occupied. 



^IMI^ 



p£pj Take Apart 



Palm Rest - 27 



Trackpad Connector 




4 Using a dental pick, 
detach the trackpad 
connector. 

Replacement Notes: 

• Before you connect the 
trackpad cable to the logic 
board, make sure the 
ferrite bead is installed. 

• Install the palm rest 
before installing the left 
& right clutch covers. 
(The palm rest tabs fit 
under the clutch cover 
tabs.) 



<<■► 



p£pj Take Apart 



Trackpad - 28 



Trackpad 




Trackpad 



Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 



^IMI^ 



p£pj Take Apart 



Trackpad - 29 



Screw Button 



Screw 




1 Remove the 2 

interchangeable screws 
that hold the trackpad 
button in place. 



^IMI^ 



p£pj Take Apart 



Trackpad - 30 



Switch Board 




Trackpad Cable 



•-Trackpad Beard 



2 Slide the switch board 
out from the 4 tabs 
holding it in place. 

3 Disconnect the trackpad 
cable from the trackpad 
board. 

4 Lift the trackpad board 
out from under the 
mounting ledge. 

Replacement Note : Note 
the 2 tiny notches on the 
trackpad (near the bottom) 
and how they align with the 
tabs in the plastics. 



^IMI^ 



Take Apart Trackpad - 3 1 

Note: Use a nonstatic inducing material to clean the 
trackpad surface, making sure the computer is off. 



<** 



p£pj Take Apart 



Sleep Actuator - 32 



Sleep Actuator 




Sleep Actuator 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

Note: Removing the sleep 
actuator is not necessary for 
further take-apart. 



^IMI^ 



p£pj Take Apart 



Sleep Actuator - 33 



Screw 



Closure 
Switch 




1 Remove the screw that 
holds the closure switch 
in place. 



^IMI^ 



Take Apart 



Sleep Actuator - 34 




Place a flat-blade 
screwdriver behind the 
actuator and push the 
actuator out from the 
palm rest. 

Lift the actuator off its 
pins. 



<<■► 



p£pj Take Apart 



Hard Drive - 35 



Hard Drive 




Hard Drive 



Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 



^IMI^ 



p£pj Take Apart 



Hard Drive - 36 



Bracket 




Remove the 3 
interchangeable screws 
that connect the hard 
drive bracket to the CPU 
stiffener. 

Lift up the bracket until 
you feel a slight 
resistance. (The hard 
drive cable is attached to 
the logic board near the 
middle of the bracket.) 



^IMI^ 



p£pj Take Apart 



Hard Drive - 37 




Screw^Ej^-Wi 



3 Turn the hard drive 
bracket so that it rests 
in front of the computer. 

4 Pull the hard drive cable 
straight up to disconnect 
it from the logic board. 

5 Remove the 4 
interchangeable screws 
holding the drive in the 
bracket. 

6 Lift off the bracket. 



^IMI^ 



p£pj Take Apart 



Hard Drive - 38 



Insulator 




Pull Tab 



7 Remove the hard drive 
insulator. 

8 Using the pull tab, 
disconnect the cable 
from the hard drive 

Note : Once you remove the 
hard drive, the computer 
will be top-heavy. To 
prevent the unit from 
tipping backwards, do one of 
the following: 

• Set the removed battery 
at a 45° angle over the 
bottom right corners of 
the computer. 

• Adjust the display so that 
it sits at an 80° angle. 



Take Apart 



Power Supply Board - 39 




Power 

Supply 

Board 



Power Supply 
Board 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 



^IMI^ 



Take Apart 



Power Supply Board - 40 




Note: The connector is 
located on the top right side 
of the power supply board. 

1 To prevent damage to its 
connector, grasp the top 
edges of the power 
supply board and lift it 
straight up and off 



<<■► 



p£pj Take Apart 



Heatsink - 41 



Heatsink 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 



^IMI^ 



Take Apart 



Heatsink - 42 




Note: The heat transfer 
sponge on the heatsink is 
tacky; keep it clean so it does 
not pick up dust from the 
workspace. 

1 Detach the infrared cable 
from the logic board and 
slide the cable from 
under its tab on the CPU 
stiffener. 

2 Remove the 2 inter- 
changeable screws from 
the heatsink. 

3 Lift the heatsink off and 
set it aside, insulator 
side-up. 



<<■► 



Take Apart 



Ethernet or Ethernet/Modem Card - 43 




Ethernet or 

Ethernet/ 

Modem Card 



Ethernet or 

Ethernet/Modem 

Card 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 



Take Apart 



Ethernet or Ethernet/Modem Card - 44 



Heatsink 




(underside 
of board) 



Note: An ethernet card or an 
ethernet/modem card is 
installed in this connector; 
the connector is located near 
the front of the card. 

1 To prevent damage to its 
connector, grasp the 
ethernet card or 
ethernet/modem card in 
front and pull it straight 
up and off. 

Replacement Note : You 

must Install the standoffs on 
the logic board before 
installing this card. 



<<■► 



\~ffi Take Apart 



Logic Board - 45 




Logic Board 



Logic Board 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 

• Heatsink 

• Ethernet or Ethernet/ 
Modem Card 



\~ffi Take Apart 



Logic Board - 46 



PCMCIA 

Switch 

Board 



Display | 
Cable^ 




1 Disconnect the display 
cable. 

2 To avoid damage to its 
pins, lift the PCMCIA 
switch board straight up 
and off. 



^IMI^ 



\~ffi Take Apart 



Logic Board - 47 



Air Flow LED 

Detector Connector 




Tab./ 1 




3 Using your fingers, 
disconnect the LED 
connector and gently 
guide the cable out of its 
5 tabs on the CPU 
stiffener. 

4 Lift off the air flow 
deflector, if present. 
(Note: The PowerBook 
G3 does not include an 
air flow deflector.) 



^IMI^ 



\~ffi Take Apart 



Logic Board - 48 



Left Side of Board 




J 4 #» 

u y it \ 



5 Using your fingers, 
disconnect the fan 
connector. 

6 Slightly pull out the left 
side of the bottom case to 
free the logic board. 

7 Grasp the right corner of 
the board and lift it up 
and out. 



^IMI^ 



\~ffi Take Apart 



Logic Board - 49 




Note : This step is not 
necessary for further take- 
apart. 

8 On the underside of the 
logic board, disengage 
the 2 tabs on the PCMCIA 
shield and lift off the 
shield. 

Replacement Note: The 

pins on the PCMCIA switch 
board are easily bent; 
install the board carefully. 



<<■► 



p£pj Take Apart 



CPU Stiffener - 50 



CPU Stiffener 



CPU Stiffener 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 

• Heatsink 

• Ethernet or Ethernet/ 
Modem Card 



p£pj Take Apart 



CPU Stiffener - 51 




Alignment 

Guide 

Assembly 



4 I 



• Logic Board 

• Display Assembly 

Note : The alignment guide 
assembly consists of a metal 
expansion bay spacer plate 
and a plastic expansion bay 
alignment guide. Its removal 
is not necessary for further 
take-apart. 

1 Insert a flat-blade 
screwdriver into the 
opening on the CPU 
stiffener and slightly lift 
up the alignment guide 
assembly. 

2 Using your fingers, slide 



^IMI^ 



Take Apart 



CPU Stiffener - 52 




lignment 
Guide 
Assembly 



Plastic 

Alignment 

Guide 

(underneath 

plate) 



the assembly forward 
and lift it off. 

Note: Turn the assembly 
around to perform the next 
step 

3 Holding the 2 pieces 
taut, insert a flat-blade 
screwdriver under the 
metal spacer plate and 
pop off the alignment 
guide. 




^IMI^ 



p£pj Take Apart 



CPU Stiffener - 53 



Screw 



Screw ^j 



Center 
Clutch 
-Cover 



CPU 
Stiffener 




4 Remove the 2 
interchangeable screws 
from the center clutch 
cover. 

5 Remove the 3 
interchangeable screws 
from the CPU stiffener. 



t Screw 6 Lift off the CPU 
stiffener. 



^IMI^ 



p£pj Take Apart 



CPU Stiffener - 54 




L&v#r 



7 Using your finger, push 
in the foot lever on each 
foot and release it 



^IMI^ 



p£pj Take Apart 



CPU Stiffener - 55 




Spring 



Expansion 
Bay Flip 
Door 



8 Slide the expansion bay 
flip door forward and 
gently remove the door 
and its spring. 

Replacement Notes: 

• With the space plate's 
notched side facing down, 
install the alignment 
guide onto the plate. 

• Slide the alignment guide 
assembly onto the CPU 
stiffener. 

• Install the expansion bay 
flip door (without the 
spring) onto the CPU 
stiffener. Holding it in 
place, pop the spring onto 



^IMI^ 



Take Apart CPU Stiffener - 56 

the 2 door tabs. 

• Insert the foot/spring assembly into its opening on the 
CPU stiffener. Holding in the release lever, push in the 
foot/spring assembly as far as it will go. Letting go of the 
release lever locks the assembly into place. 

• Before installing the stiffener, make sure 1 ) the LED 
cable is out of the way and 2) the I/O shield, infrared 
board, and infrared window are correctly aligned. 



<** 



p£pj Take Apart 



Infrared Window & Board - 57 



Infrared 
Board 

Infrared 
Window 




Infrared Window 
& Board 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 

• Heatsink 



^IMI^ 



p£pj Take Apart 



Infrared Window & Board - 58 



Infrared 
Board 



Infrared 
Vindow 




• Ethernet or Ethernet/ 
Modem Card 

• Logic Board 

• Display Assembly 

• CPU Stiffener 

Note : The infrared board 
falls out when you remove 
the infrared window. 

1 Lift the infrared window 
off the bottom case. 

2 Remove the infrared 
board from the bottom 
case. 



^IMI^ 



Take Apart 



Infrared Window & Board - 59 



Disconnect the infrared 
cable from the board. 




h — Infrared 
Cable 






Replacement Notes: 

• Do not leave fingerprints 
on the infrared window. 
Before installing it, clean 
it with a soft, lint-free 
cloth. 

• With its notched side 
down, install the infrared 
window into its slot on the 
bottom case. 

• Before installing the 
infrared board, install its 
cable. 

• With its notched side 
down, angle the board onto 



^IMI^ 



Take Apart Infrared Window & Board - 60 

its 3 holding tabs on the bottom case. Align the notch with 
the center tab and push the board back until it snaps into 
place underneath the window tab. 
• Before installing the CPU stiffener onto the bottom case, 
thread the infrared cable up though the stiffener and hold 
the infrared window in place. 



<** 



p£pj Take Apart 



Media Bay LED & Release Mechanism - 61 



M?dia Bay LED 




Media Bay Release Mechanism 



Media Bay LED & 

Release 

Mechanism 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 



p£pj Take Apart 



Media Bay LED & Release Mechanism - 62 



Media Bay LED 




Heatsink 

Ethernet or Ethernet/ 

Modem Card 

Logic Board 

Display Assembly 

CPU Stiffener 

Insert a flat-blade 
screwdriver under the 
media bay crystal and 
gently pry up until the 
LED dislodges. 



^IMI^ 



p£pj Take Apart 



Media Bay LED & Release Mechanism - 63 




Note : The release 
mechanism assembly 
consists of a spring and 
plastic "hook and eye." 

2 Remove the spring from 
the top of the media bay 
release mechanism. 



^IMI^ 



Take Apart 



Media Bay LED & Release Mechanism - 64 




Caution: The following 
step, which frees the tightly 
installed release mechanism 
from the bottom case, is 
difficult to perform. Be 
careful not to break the 
plastic snaps. 

3 Inserting a flat-blade 
screwdriver between 
one of the snaps and the 
release mechanism, 
carefully but firmly 
force the snap outwards. 

4 Pull out the release 
mechanism. 



^IMI^ 



Take Apart 



Media Bay LED & Release Mechanism - 65 



Hook 




Mechanism Replacement 
Notes : 

• Install the plastic "eye" 
onto its round notch on 
the bottom case. 

• Align the plastic "hook" 
with the "eye" and snap 
it into place on the bottom 
case. 

• Install the spring onto its 
2 pins on the release 
mechanism. 



^IMI^ 



Take Apart Media Bay LED & Release Mechanism - 66 

Cable Replacement Note: Gently bend the LED cable to 
the right so that its con-nector rests outside the bottom 
case. This will allow the cable to clear the stiffener as the 
stiffener is installed. 



<** 



\~ffi Take Apart 



ADB Door - 67 



ADB Door 




No preliminary steps are 
required. 



^IMI^ 



\~ffi Take Apart 



ADB Door - 68 



1 Open the ADB door. 




Note : The ADB door is held 
in place by 2 pins on the 
bottom case. 

2 Unhinge one side of the 
door, then the other. 

3 Lift off the door. 



ADB Door 



<<■► 



p£pj Take Apart 



I/O Door - 69 



I/O Door 




No preliminary steps are 
required. 



I/O Door 



^IMI^ 



p£pj Take Apart 



I/O Door - 70 




Note : The I/O door is held in 
place by 2 pins on the 
bottom case. 

1 Placing a finger on each 
side of the open I/O door 
and one finger in the 
middle of the door, 
gently bend the door 
until the middle bows 
out. 

2 Unhinge one side of the 
door. 

3 Lift the door from the 
remaining hinge. 



I/O Door J 



<<■► 



p£pj Take Apart 



Front Feet - 71 



Front Feet 




No preliminary steps are 
required. 

Note : Removing the front 
feet is not necessary for 
further take-apart. 



^IMI^ 



p£pj Take Apart 



Front Feet - 72 




With a flat-blade 
screwdriver, pry up and 
remove the feet from the 
grooves in the bottom 
case. 



<<■► 



Take Apart 



Bottom Case - 7 3 



Bottom Case 



Bottom Case 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Brightness & Speaker 
Grill 

• Left & Right Clutch 
Covers 

• Palm Rest 

• Hard Drive 

• Power Supply Board 

• Heatsink 

• Ethernet or Ethernet/ 
Modem Card 



p£pj Take Apart 



Bottom Case - 74 



I/O Shield 



Reset 
Actuator 




• Logic Board 

• Display Assembly 

• CPU Stiffener 

• Infrared Window & Board 

• Media Bay LED & Release 
Mechanism 

• ADB Door 

• I/O Door 

Note: The I/O shield sits on 
2 posts and 2 slotted tabs. 

1 Lift off the I/O EMI 
shield. 

2 Slide the reset actuator 
up and off the I/O shield. 



<<■► 



p£pj Take Apart 



Floppy Drive - 75 



Floppy Drive 
Assembly 




Floppy Drive 

Before you begin, remove 

the following: 

• Floppy Drive Assembly 



^IMI^ 



\7#l Take Apart 



Floppy Drive - 76 



FloppyDri - * Screw 



Top Case 
(metal) 



Screw 




Screw 



Board 



Bottom Case 
Screw (plastic) 



Using a #6 torx driver, 
remove the 5 screws 
from the floppy drive 
assembly. 

Lift the floppy drive out 
of the bottom case. 

Slide the metal top case 
off the floppy drive. 



^IMI^ 



p£pj Take Apart 



Floppy Drive - 77 




Floppy D ri^« Boand 



Floppy D rise Cable 



Using a dental pick, 
disconnect the floppy 
drive cable from the 
floppy drive and the 
floppy drive board. 



^IMI^ 



p£pj Take Apart 



Floppy Drive - 78 



Metal 
Plate 



Bottom 
Case 



. 




Replacement Notes 

• Make sure the metal plate 
is seated on the bottom 
case. 



^IMI^ 



p£pj Take Apart 



Floppy Drive - 79 




Install the top case. 
Install both ends of the 
cable into its connectors. 
Holding the assembly 
components tightly 
together, slide the board 
into its slot and the drive 
into the bottom case. 
Installthe5screws. 



<<■► 



Take Apart Display Assembly - 80 



Display Assembly 



Procedures for removing parts from the display assembly 
are detailed on the following pages. 



^IMI^ 



p£pj Take Apart 



Display Assembly - 81 



Display 
Assembly 




Display Assembly 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 



^IMI^ 



p£pj Take Apart 



Display Assembly - 82 




1 Gently disconnect the 
display cable from the 
logic board. 



^IMI^ 



Take Apart 



Display Assembly - 83 




2 Remove the 2 
interchangeable screws 
from the metal clutches. 

3 Lift off the display 
assembly. 

Replacement Note: 

• To prevent tearing the 
display cable, make sure 
the screw hole on the 
cable aligns with the 
screw hole on the clutch. 

•Perform this test to 
confirm you installed the 
display assembly 
correctly: Try to insert a 
3.5" diskette between the 
closed assembly and the 



Take Apart Display Assembly - 84 

top case. If you can, this indicates the clutch screws are 
undertightened. Remove the display assembly and loosen 
the screws. 



<** 



p£pj Take Apart 



Display Housing - 85 



-Display Housing 




Display Housing 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 



^IMI^ 



p£pj Take Apart 



Display Housing - 86 



Bezel — 




1 Using a plastic swizzle 
stick, remove the 2 
product name plates 
from the bezel. 



Name Plates 



^IMI^ 



p£pj Take Apart 



Display Housing - 87 



Screw 



Bumper 



Screw 



2 Remove the 2 bumpers 
and 4 interchangeable 
screws from the bezel. 




rnper 



^IMI^ 



p£pj Take Apart 



Display Housing - 88 



Display Housing 



Latches— i 




Latches 



3 Starting at the clutch end 
of the display housing, 
use a flat-blade 
screwdriver to carefully 
pry the plastics apart at 
the eight inner latch 
locations. 

4 Lift off the display 
housing. 

Note : Removal of the 
speaker grills, which are 
not interchangeable, is not 
necessary for further take- 
apart. 



^IMI^ 



Take Apart 



Display Housing - 89 



Display Housing 
Speaker Grill 




5 Lift the right and left 
speaker grills out of 
their slots on the 
housing. 

Replacement Note: Angle 
the display housing onto the 
bezel. As you lower the 
housing into place, snap in 
the side latches, then the 
bottom latches. 



<<■► 



\~fi?\ Take Apart 



Latch - 90 



Latch 



SHCKefBrEItti 



•^f 



<i 



>& 






=■ ■ :, • _.EW jff "^ ^ H "H *H 1J= 



is™ 



UD 



Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 



^IMI^ 



\~fi?\ Take Apart 



Latch - 91 



Spring — | Latch 




w- u 



™_^ f -w^, ■ ■ . .,-p-, 




Note : It's a good idea to 
remove the latch any time 
you're working inside the 
display assembly. Removal 
allows the display to lay flat 
and evenly absorb any 
pressure exerted when 
screws are installed. 

1 Slide the latch and its 
spring to the right and 
lift them up and off. 



<<■► 



p£pj Take Apart 



Display Frame - 92 



Display Frame 




Display Frame 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 



^IMI^ 



p£pj Take Apart 



Display Frame - 93 




Screw 



Sere -1 




■ev i ^ Screw i_j c Si 

MijlfflLJ).i!ujiiDul31.J.;i -ullsPj 



1 Remove the 6 

interchangeable screws 
from the display frame. 



Screw 



'•' :^ 



P*** —i 



1=^4^= 



3K ^ 



^ini^ 



p£pj Take Apart 



Display Frame - 94 




Note: The inverter board is 
located under the display 
frame; 3 of its connectors 
must be detached in order to 
remove the board. 

2 Using your fingers, 
disconnect the sleep LED 
connector. 

3 Using your fingers, 
disconnect the 2 speaker 
connectors. 

4 Using a swizzle stick, 
undo and then peel back 
the kapton tape securing 
the 3 cables to the 
display frame. 



^IMI^ 



p£pj Take Apart 



Display Frame - 95 




5 Using your fingers or a 
flat-blade screwdriver, 
release the 6 tabs. 

6 Lift off the display 
frame. 



^IMI^ 



p£pj Take Apart 



Display Frame - 96 




Replacement Notes 

• Making sure the 
connectors are on top of 
the display frame, set the 
frame on the display and 
align the 6 tabs. 

• Without applying 
pressure to the display, 
gently engage the tabs. 
Make sure they're fully 
engaged. 



^IMI^ 



p£pj Take Apart 



Display Frame - 97 



Guide Posts 




Wrap the cables around 
their guide posts and 
guide them into their 
channels. Connect the 
speaker and sleep LED 
connectors. 

Reattach the kapton tape 
to secure the 3 sets of 
wires. 

After checking that the 
screw holes are still 
aligned, install the 
screws in this sequence: 
top (2), mid-bottom 
(2), and outer bottom 
(2). 



<<■► 



p£pj Take Apart 



Inverter Board - 98 



Inverter Board 



Inverter Board 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 

• Display Frame 



^IMI^ 



Take Apart 



Inverter Board - 99 



Inverter Backlight Display 
Frame Connector Connector 




Note: Avoid applying 
pressure to the display, 
which could cause the screen 
to crack. 

1 Raise the inverter frame 
slightly so that it's not 
touching the display. 

2 Using your fingers, 
disconnect the backlight 
connector and the display 
connector. 

3 Set the inverter frame 
aside. 



^IMI^ 



Take Apart 



Inverter Board - 1 00 



Display 

Acoustic 

Gasket 



Inverter 
Board 




Tab 



4 Using your finger or a 
flat-blade screwdriver, 
release the inverter 
board tab. 

5 Lift off the inverter 
board. 

6 Remove the display 
acoustic gasket. 

Replacement Notes: 

• Install the display 
acoustic gasket on the 
free-standing inverter 
frame. 

• Install the inverter board 
onto its alignment guide 
and engage the tab. 



^IMI^ 



Take Apart 



Inverter Board - 1 01 




Backlight 
Connector 



Display 
Connector 



Holding the inverter 
frame slightly above the 
display, connect the 
backlight and display 
connectors. 

Carefully set the inverter 
frame onto the display, 
making sure the flap on 
the display shield is 
closed. 



^IMI^ 



Take Apart 



Inverter Board - 1 02 




Excess Cable 
in Bezel Channel 



Guide Line 

for Backlight 

Cable 



Precisely align the 
inverter frame with the 
"M-shaped" guide line on 
the display shield. 
Lay the backlight cable 
within the guide line on 
the display shield, making 
sure it lies flat. 
Reattach the kapton tape 
to the backlight cable, 
pushing any excess cable 
into the bezel channel. 



<<■► 



Take Apart 



Display Cable - 1 03 




Display Cable 



Display Cable 

Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 

• Display Frame 

• Inverter Board 

Note: For this procedure it 



Take Apart 



Display Cable - 104 




is only necessary to 
disconnect the display cable 
from the inverter board, not 
remove the inverter board. 
(Review the precaution for 
this step in the Inverter 
Board chapter.) 

Note : Because it is difficult 
to prevent kapton tape from 
sticking to itself or to 
aluminum, where specified, 
do not reuse the tape. 

1 Using a swizzle stick, 
pry up the 4 pieces of 
kapton tape from the 
flaps of the display 
shield. 



p£pj Take Apart 



Display Cable - 1 05 




Display 
Cable 



2 Dispose of the tape. 

3 Disconnect the display 
cable from the display. 



^IMI^ 



p£pj Take Apart 



Display Cable - 1 06 



Kapton Tape 



Microphone 



Display- 
Cable 




4 Gently pull the 
microphone off the bezel. 

5 Peel back the kapton tape 
from the "Y" section of 
the display cable. 



^IMI^ 



p£pj Take Apart 



Display Cable - 107 




Unwrap the display cable 
from the right clutch. 

Lift the cable off its two 
holding pins, slide it to 
the left, and guide it off 
the alignment catch. 

Using your fingers, 
disconnect the 
microphone from the 
display cable. 



^IMI^ 



Take Apart Display Cable - 1 08 

Replacement Notes: To ensure that the display is 
properly seated, reassemble it in the following sequence, 
noting the precautions. 

• Check that the display shield's grounding tabs for the 
microphone and the clutches are properly seated. 

• Install the microphone and attach its connector. 

• Install the display cable onto its 2 pins and slide it onto 
the alignment guide. 

• Wrap the display cable around the clutch and seat its 
grounding tab on the end of the clutch. 

• Reattach the kapton tape to the "Y" section of the display 
cable. 

• To prevent damage to the components on the display, lift 
the bezel up slightly to reduce the load on the display. 
Then connect the display cable to the display. 

• Attach 4 pieces of new kapton tape where indicated by the 
guide lines on the display shield. 



p£pj Take Apart 



Display - 109 



Display 



Display 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 

• Display Frame 

• Inverter Board 

• Display Cable 



^IMI^ 



Take Apart 



Display - 1 10 



Area of Shield 
Surrounding. Sorew 




1 Remove the display from 
the bezel. 

Caution: The upper right 
corner of the shield 
surrounding the screw has a 
thin strip that is easily 
ripped. Be careful not to 
tear it as you remove the 
shield. 

2 Carefully slide the 
display out of its shield, 
guiding the backlight 
cable so it does not get 
caught. 



^IMI^ 



Take Apart Display - 1 1 1 

Replacement Notes: 

• Holding the display shield against your chest, slide the 
display in, guiding the backlight cable through. 

• Set the display in the bezel. Turn the bezel over and check 
that the shield does not show. 



<** 



p£pj Take Apart 



Clutch -112 



Clutch 




Clutch 



Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM Drive 
Assembly 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 

• Display Frame 

• Inverter Board 

• Display Cable 



^IMI^ 



p£pj Take Apart 



Clutch - 1 1 3 




Note: For this procedure it 
is only necessary to 
disconnect the display cable 
from the inverter board, not 
remove the inverter board. 
(Review the precaution for 
this removal in the Inverter 
Board chapter.) 

1 Carefully fold up the 
clutch grounding tabs on 
the display shield. 

2 Lift each 
interchangeable clutch 
off its pins. 



Grounding Tab 



<<■► 



Take Apart 



Bezel -114 



Bezel 



Bezel 




Before you begin, remove 
the following: 

• Battery 

• Floppy or CD-ROM 
Mechanism 

• Keyboard 

• Left & Right Clutch 
Covers 

• Brightness & Speaker 
Grill 

• Display Assembly 

• Display Housing 

• Display Frame 

• Inverter Board 

• Display Cable 

• Display 



^IMI^ 



p£pj Take Apart 



Bezel - 1 1 5 



i\ i- 



Clutch 




Note : Removal of the LED is 
only necessary if you are 
replacing it. 

1 Remove the sleep LED. 



<<■► 



Service Source 




I Additional Procedures 

PowerBook 3400c/PowerBook G3 



<** 



Additional Procedures 



Battery Verification - 1 




Battery level indicator button 
Battery level indicator lights 



Fully charged 
3/4 charged 
1/2 charged 
1/4 charged 



Battery 
Verification 

The Control Strip on the 
desktop indicates the battery 
charge and the rate at which 
the battery is being used. 

Note: The battery level 
indicator lights show 
whether the battery is 
fully-charged, three- 
fourths charged, one-half 
charged, or one-fourth 
charged. 

1 To determine the actual 
battery charge, push in 



^IMI^ 



I "3?/ Additional Procedures 



- 2 



the level indicator button to activate the indicator lights. 



Power Adapter Verification 

No test is available for verifying the power adapter. Try 
using a new power adapter if the computer cannot run off the 
existing one. 



<** 



I^ffj Additional Procedures Backup Battery Verification - 3 

Backup Battery Verification 

The backup battery saves the PRAM and power management 
information on the logic board when the computer is shut 
down. To check that the backup battery is working, follow 
the procedures below. 

1 Set the date and time. 

2 Perform a Shut Down from the Apple Menu or Special 
menu 

3 Remove the main battery and disconnect the power 
adaptor for 1 minutes. 

4 Connect the power adaptor, insert the battery, and power 
on the computer. 

5 If the date and time were lost, the backup battery may be 
dead or discharged. 



I^ffj Additional Procedures Backup Battery Verification - 4 



6 To recharge the backup battery, leave the PowerBook 
plugged in for 48 hours. It is ok to use it while it is 
charging. 

7 If the backup battery appears dead or will not charge, 
replace the backup battery. 



<** 



I "2^1 Additional Procedures PRAM and Power Manager Reset - 5 

PRAM and Power Manager Reset 

Caution: Resetting parameter RAM (PRAM) erases the 
contents of the RAM disk, if there is one. Resetting PRAM 
also restores the default settings in most control panels. 
After you reset PRAM, be sure to check any custom settings 
for the desktop pattern, memory, network, AppleTalk, 
trackpad, power conservation, and so forth. 

Resetting PRAM 

Reset/zap PRAM from the shutdown state. Note that resetting 
PRAM when the computer is shut down also resets the power 
manager. 

Follow these steps to reset PRAM: 
1 Unplug the AC adapter. 



Additional Procedures PRAM and Power Manager Reset - 6 

2 Power on the computer by pressing the Power key. 

3 Immediately hold down the Option-Command-P-R keys. 

4 Keep holding down these four keys until you have heard 
the startup chime at least one additional time after the 
initial startup chime. 

(If the PowerBook emits multiple chimes when you are 
holding down the Option-Command-P-R keys, skip to 
Step 7.) 

Note: Unlike other PowerBook models, these PowerBook 
computers often emit only a single startup chime. Then 
the screen goes dark/blank and the green sleep light 
stays on (it does not blink on and off as it does when the 
computer is in sleep mode). 

5 Press the Reset button once and, after a brief pause, the 
PowerBook should start up. 



Additional Procedures PRAM and Power Manager Reset - 7 

Note: If the PowerBook powers off and the sleep display 
light stays a solid green with no blinking, press the 
Reset button again. 

6 If the PowerBook does not power on from the Reset 
button, turn the PowerBook on by pressing the Power 
key. 

7 After the computer has started up, select Shut Down 
from the Special menu. 

8 Plug in the AC adapter. If the computer remains shut 
down, you will know that you have successfully reset the 
PRAM and power manager and your computer should now 
function normally. If, however, the computer powers on 
when you plug in the AC adapter, you need to reset the 
power manager. 



^IMI^ 



hC^I Additional Procedures PRAM and Power Manager Reset - 8 

Resetting the Power Manager 

Follow these steps to reset the power manager: 

1 Remove the battery. 

2 Disconnect the AC adapter from the PowerBook and 
unplug it from the wall outlet. 

3 Press and hold the Reset button for one minute. 

4 Plug the AC adapter into the wall outlet. 

5 Connect the AC adapter to the PowerBook. It should now 
behave normally when you choose Shut Down from the 
Special menu. 



<** 



I "3?/ Additional Procedures 



Battery Gasket Installation - 9 



Paper Backing 

Tacky Surface 



Wood 
Applicator 




Battery Gasket 
Installation 

The gasket kit comes with a 
set of foam gaskets and a 
wood applicator. Use the 
applicator to place a gasket 
on the inside of the battery 
bay. 

1 Remove the battery from 
the PowerBook 3400. 

2 Remove the paper 
backing from the wood 
applicator and place the 
gasket adhesive-side up 
on the applicator's 



^IMI^ 



m 



Additional Procedures 



Battery Gasket Installation - 1 



Paper 
Backing 

Gasket 




Angled Notch 



Gasket Surface 



tacky surface. 

Remove the backing from 
the adhesive side of the 
gasket. 

Using the applicator, 
place the gasket on the 
notched side of the 
battery bay. Make sure 
the angled edge of the 
gasket aligns with the 
angled side of the notch 
and the gasket flap 
extends into the notched 
opening. 

Note: Apply the gasket 
to the dull gray surface 
of the bay, not the shiny 



m 



Additional Procedures 



Battery Gasket Installation - 1 1 



metal surface above it. 

5 Press the gasket onto 
the battery bay. 




Notch 



Applicator 



^IMI^ 



m 



Additional Procedures 



Battery Gasket Installation - 1 2 




6 Remove the applicator 
from the bay and turn 
the applicator over so 
the non-sticky side faces 
the gasket. 

7 Reinsert the applicator 
into the battery bay, and 
burnish the gasket to 
the bay. 

8 Remove the applicator 
and replace the battery. 



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Service Source 




Exploded View 



PowerBook 3400c/PowerBook G3 



<m* 



Exploded View 



Bottom & Display Assembly 1 



Left Clutch 
Cover 
922-2493 Backup 

Battery Cable 
Backup Battery ^ 922-2693 
922-2692 



Keyboard 
922-3109 



Hard Drive 

Bracket 

922-2497 

Hard Drive 

(3400) 

661-1241 

661-1333 

661-1482 (G3) 

Hard Drive 

Cable 

922-2470 

PCMCIA 

Shield 

922-2500 

(3400) 

Power Supply 

Board 

661-1237(3400) 

661-1473 (G3) 

Fan Kit 

076-0615 

(3400) 

076-0714 (G3) 



ADB Door 
922-2496 

Bottom Case 

922-2487 (3400) 

922-3330 (G3) 

Feet& 
Springs Kit 
076-0505 
Palm Rest 
922-2498 
\ 



Sleep 

Actuator 

922-1424 

Trackpa/ 

Button 

922-2702 



Center Clutch Cover 
922-2492 

Right Clutch Cover 

922-2494 

Brightness & Speaker Grill 

922-2488 

Heatsink 

922-2485 (3400) 

922-3260 (G3) 

Ethernet/Modem Card 

661-1475(G3) 

661-1283(3400) 

Ethernet Card 
661-1284 

DRAM Expansion Card 
661-1344(3400) 

PCMCIA Switch Board 
922-1422 
Infrared Cable 
922-2473 




IR Board 
922-2469 (3400) 
922-3332 (G3) 



Floppy Drive 
Case Kit 
076-0688 



Floppy Drive 

Board 

922-1632 

CD-ROM 

Drive Assembly 

661-1290(3400) 

661-14J§(3400/G3) 




Trackpad Board § 

922-2694 

Trackpad Cable 

922-1916 

Battery Cap 



Battery w/Cap 
922-2471 (3400) 
Battery(no Cap) 



Floppy Drive 
661-1360 




922-1 685(G3) 076-071 9(G3) 



<<■► 



m 



Exploded View 



Bottom & Display Assembly 2 



Left Display 

Housing Grill 

922-2480 




Display Housing 
922-2477 



Right Display 
Housing Grill 
922-2481 



Display Frame 
922-2474 



Inverter Board 
922-2468 

Acoustic Gasket 
922-2484 

Inverter Frame 
922-2479 



Display/Inverter 

Cable 

922-2467 



Display Shield 
922-2478 



Microphone 
922-2472 



Clutch & Sleeve 
076-0645 



Bezel 
922-2476 



Latch Display Kit 
076-0602 



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